libpri: An implementation of Primary Rate ISDNWritten by Mark Spencer <markster@digium.com>What is libpri?===============libpri is a C implementation of the Primary Rate ISDN specification.  It wasbased on the Bellcore specification SR-NWT-002343 for National ISDN.  As ofMay 12, 2001, it has been tested work with NI-2, Nortel DMS-100, and Lucent 5E Custom protocols on switches from Nortel and Lucent.What is the license for libpri?===============================libpri is distributed under the terms of the GNU General Public License, which permit its use and linking with other GPL'd software only.  The GNU GPL is included in the file LICENSE in this directory.As a special exception, libpri may also be linked to the OpenH323library, so long as the entirity of the derivative work (as definedwithin the GPL) is licensed either under the MPL of the OpenH323 licenseor the GPL of libpri.If you wish to use libpri in an application for which the GPL is not appropriate (e.g. a proprietary embedded system), licenses for libpri under more flexible terms can be readily obtained through Digium, Inc. at reasonable cost.How do I report bugs or contribute?===================================For now, contact the author directly.  In the future if there is sufficient interest, we will setup a mailing list.Does anything use this library so far?======================================Yes, the Asterisk Open Source PBX does.  http://www.asterisk.orgAlso, the Zapata library has hooks for it.  http://www.zapatatelephony.orgSpecial thanks==============Special thanks to Jim Dixon <jim@lambdatel.com> for his help in testing and fixing the implementation.